Damper regulator



Sept. 8, 1925. 1,553,236

J. c. c. HARRIS DAMPER REGULATOR Filed Sept. 5, 1924 x x I I K K l xINVENTpR l l l lm-roRNEYs lPatented Sept. 8, 1925.

UNITED STATES PATENT OFFICE.

JOHN C. C. HABRISLOF DANVERS, MASSACHUSETTS, ASSIG'N'OR TOLOCKEREGULATOR C0., F SALEM, MASSACHUSETTS, A CORPORATION 0F MASSACHUSETTS.

DAMPER REGULATOR.

Application led September 3, 1924. Serial No. 735,653.

To aZLfwIom z't vmay (Io/noem:

Be it known that I, JOHN C. C. HARRIS, a citizen of the United States,and a resident of Danvers, in the county of Essex and State ofMassachusetts, have invented a new and Improved DamperlRegulator, ofwhichl the following is a full, clear, and exact description.

vThis invention relatesto damper regulators and more particularly to animproved construction of pressure cap designed ,for

use In connection with apparatus such as disclosed in Patent No.924,559, granted' June 8,1909, to N. C.'Locke.

An object of theV invention isto provide a pressure cap with an improvedconstruction of post and strut receiving and engaging the scale beamsothat the post forms a guide at two 'sides of the strut engaging oppositesides of the scale beam. This construction will also keep the strut inits proper position and prevent it from being displaced with thedownward movement of i the diaphragm.

With these and other objects in view, the invention consists incertainnovel features of construction, and combinations and arrangements owfparts which will be more I fully hereinafter described and pointed outin the claim.

In theA accompanying drawings- Figure 1 is a view, mainly in elevation,

' illustrating the lapparatus disclosed in the patent above'referred to,and in section my improved regulator;

Figure- 2*"is an enlarged view in section of my improved regulator cap,the view be- E ing taken on the line 2-2 of Figure 5;-

Figure 3 is a view in section at .right angles to Figure 2, the'vewbeing taken in section on'the line 3-.3 of Figure 5;

Figure 4 is a view similar to Figure 3 illustrating a modification;

Figure 5 is a top plan view of the cap illustrated in Figure 2.

1 represents a' casing constituting a pres- 4 sure chamber andcommunicating directly by steam pipe v2 with a boiler (not shown). Thiscasing 1 is made in two sections secured -together by bolts 3, and a.diaphragm 4 is securely .clamped to the sections of the oasi ing. 5represents a scalebeam which is fulcrumed as shown at 6 to a portion ofthe frame 7 On the diaphragm 4 myimproved pressure cap 8 is secured andis made with a central vertical post 9 having a strut 10 engaging theunder vface of'the beam 5.

This cap 6 at the center of its base Ais formed with a screweth'readedsocket`11 to receive a Y screw 12 'projected' through the diaphragmto'effectually clamp the diaphragm and cap together.

The post 9 above referred to is bifurcated at its upper end so that apair of upstanding lugs 13 is provided located at opposite sides of thebeam 5. The strut 10 above referred' .to constitutes a knife-edge pinengaging the lower face of the beam 5 and resting ina recess 14 in thepost between the lugs 13. 'p

In' the form-of ca illustrated in Figures 1, 2,V 3 and 5, the bodyportion thereof is of Vinverted cup-shape, while in Figure 4 the Theother Vfeatures illustrated in Figure 1 are common to the constructionset forth in the patent above described, and as my invention relatessolely to the novel construction andy arrangement of'pressure cap andits cooperating parts itis needless to describe in detail theconstruction and operation of the other features, and reference is madeto this prior patent to indicate the use of my cation.

. To strengthen the construction of the cap and at the Sametime providea relatively light cap, I locate in the bottom ofthe cap invention setforthin this applia circular series of radial strengthening webs 16.

Various slight changes and alterations might be made in the general formof the parts described without departing from my Invention, and hence Ido not limit myself to the precise details set forth but consider myselfat liberty to make such slight changes and alterations as fairly fallwith a bifurcated upper end and haiing a. longiin the spirit and scopeof the appended tudinal recess in the body portion communi- 10 claim. feating with the space between the furca- I claim: tions, and a strutlocated in the recess and l A cap of the character described, comhavingits upper end projected` between the prising a body portion adapted tobe fixed furcations and having a knife-edge upper toadiaphragm, acentral post projectingup end. wardly from the body portion and having pJOHN C. C. HARRIS'.V

